No abstract

In view of the appearance of a communication from the Massachussets Institute of Technology, in which an admirable elucidation of the structure of Aflatoxin B (I) and G is described, we present here additional information on toxic metabolites of Aspergillus fiavus 2 . 0 0 I During our work on the elucidation of the structure of Aflatoxin B we obtained two products from catalytic reduction in glacial acetic acid over palladium on charcoal. Prolonged reduction (12-16 h) leads to tetrahydrodesoxo-aflatoxin B, already described However, if the reduction

In connection with the study of autoxidation of some iso-linoleic acids, the 9, 15-, 8,15-, and 7,15-octadecadienoie acids have been synthesized by partial hydrogenation of the corresponding diynoie acids. These aeids were prepared by coupling o)-iodo-3-alkynes with ~-chloro-l-alkynes by means of sodium amide in liquid ammonia to form ,o-ehlorohexadi3nles, followed by condensation of the corresponding iodine compounds with sodium malonic ester.